Analysis of Pesticides in Food and Environmental Samples - Chapter 4 ppt

... identification and determination of a variety of pesticides. New breakthroughs in the development and application of immunoassays will result from the integration of future state- of- the-art research in ... L., Inerowicz, H., Halina, D., and Regnier, F. Spinning-disk laser interferometers for immuno-assays and proteomics: the BioCD. Proc. SPIE Int. Soc. Opt. Eng.(220), 5...

Ngày tải lên: 12/08/2014, 04:22

... H 13 ClN 6 2-( 4- Chloro-6-ethylamino- 1,3,5-triazin-2-ylamino )- 2-methylpropionitrile 2.0 3 10 À 4a 2.1 171 ca. 14 Metribuzin C 8 H 14 N 4 OS 4- Amino-6-tert -butyl- 4, 5-dihydro-3-methylthio- 1,2 , 4- triazin-5-one 0.058 a ... (Days) Cyproconazole C 15 H 18 ClN 3 O (2RS,3RS;2RS,3SR )-2 - ( 4- Chlorophenyl )-3 -cyclopropyl- 1-( 1H-1,2 , 4- triazol-1-yl) butan-2-ol 0...

Ngày tải lên: 12/08/2014, 04:22

... Extraction 43 2.3.3 Liquid–Liquid Extraction 45 2.3 .4 Solid-Phase Extraction 45 2.3 .4. 1 Polar Sorbents 46 2.3 .4. 2 Nonpolar Sorbents 48 2.3 .4. 3 Ion-Exchange Sorbents 49 2.3 .4. 4 Affinity Sorbents 49 2.3.5 ... LLC. 2 Sample Handling of Pesticides in Food and Environmental Samples Esther Turiel and Antonio Martín-Esteban CONTENTS 2.1 Introduction 36 2.2 Samp...

Ngày tải lên: 12/08/2014, 04:22

... uncertainty of sampling and CV L is the combined uncertainty of the laboratory phase including sample processing (Sp) and analysis (A). The preparation of portion of sample to be analyzed 14 as ... determine the size, frequency (time or distance), spaci ng, mixing, dividing of samples, and consequently the time required for sampling and the cost of sampling, shipping,...

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... L., and Tadeo, J.L. Determination of corn herbicides by GC-MS and GC-NPD in environmental samples, J. Agric. Food Chem., 42 , 2210, 19 94. 21. Balinova, A.M. and Balinova, I. Determination of herbicide ... determination in soil of herbicides used in forestry by GC-NPD and GC-MS, J. Agric. Food Chem., 46 , 18 64, 1998. 31. Sánchez-Brunete, C., et al. Multiresidue...

Ngày tải lên: 12/08/2014, 04:22

... LLC. 9 .4 Capillary Electrophoresis 244 9 .4. 1 Principles 244 9 .4. 2 Advantages 245 9 .4. 3 Disadvantages 245 9 .4. 4 Trends 245 9 .4. 5 Applications 245 9.5 Immunoassays 246 9.5.1 Principles 246 9.5.2 ... metalaxyl and vinclozolin in environmental waters. Analytica Chimica Acta 19 94, 293(1–2), 109–117. 34. Chiron, S., Barcelo, D., Determination of pesticides in drink...

Ngày tải lên: 12/08/2014, 04:22

... Cleaning of Traps for the Sampling of Pesticides in Ambient Air 2 64 10.2.2 Sampling and Extraction of Pesticides in Rainwater Samples 2 64 10.2.2.1 Sampling of Rainwater 2 64 10.2.2.2 Extraction of ... study, the efficiency of trapping gaseous current-used pesticides on different traps, including PUF, XAD-2 resin, XAD -4 resin, and PUF=XAD-2=PUF and PUF=XAD -...

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... us pesticides included in the analysis were detected in the 231 analyzed samples of pork and bovine meat. The frequencies of DDT, HCH, and dieldrin found in Japanese samples during 2000–20 04 61 are ... and 95% of the cod liver samples, respectively. b DDT, HCH, and dieldrin were detectable in 100%, 41 %, and 94% of the herring samples, respectively. c DD...

Ngày tải lên: 12/08/2014, 04:22

... adequate reporting of the results in the more meaningful manner; and (6) estima- tion of the monitoring program cost. 12.2.2 SELECTION OF PESTICIDES FOR MONITORING The number and nature of pesticides ... of use [44 ]. 12.2.3.2.1 Occurrence and pesticide levels in water samples The majority of the pesticide monitoring effort goes into monitoring surface fresh- water...

Ngày tải lên: 12/08/2014, 04:22

... develop and maintain minor uses, and to implement a faster approval of reduced-risk pesticides and those used on minor crops. • The zero-tolerance standard for certain pesticides in processed foods be ... protecting man from dis- ease and increasing his ability to produce food and fiber. However, the use and misuse of pesticides has become one of the major concerns...

Ngày tải lên: 11/08/2014, 12:21